[removed] rounding a float UP to nearest .25 (or whatever…)

Question

All answers I can find are rounding to nearest, not up to the value... for example

1.0005 => 1.25  (not 1.00)
1.9   => 2.00
2.10 => 2.25
2.59 => 2.75         


        

Answer 1

Just multilpy by 4 and take the ceiled value with 4 times.

var values = [1.0005, 1.9, 2.10, 2.59],
    round = values.map(function (a) { return Math.ceil(a * 4) / 4; });

document.write('
' + JSON.stringify(round, 0, 4) + '
');